| 1 | ## oils_failures_allowed: 2
|
| 2 | ## compare_shells: dash bash-4.4 mksh zsh
|
| 3 |
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| 4 |
|
| 5 | # NOTE:
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| 6 | # - $! is tested in background.test.sh
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| 7 | # - $- is tested in sh-options
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| 8 | #
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| 9 | # TODO: It would be nice to make a table, like:
|
| 10 | #
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| 11 | # $$ $BASHPID $PPID $SHLVL $BASH_SUBSHELL
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| 12 | # X
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| 13 | # (Subshell, Command Sub, Pipeline, Spawn $0)
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| 14 | #
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| 15 | # And see whether the variable changed.
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| 16 |
|
| 17 | #### $PWD is set
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| 18 | # Just test that it has a slash for now.
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| 19 | echo $PWD | grep /
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| 20 | ## status: 0
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| 21 |
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| 22 | #### $PWD is not only set, but exported
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| 23 | env | grep PWD
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| 24 | ## status: 0
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| 25 | ## BUG mksh status: 1
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| 26 |
|
| 27 | #### $PATH is set if unset at startup
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| 28 |
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| 29 | # WORKAROUND for Python version of bin/osh -- we can't run bin/oils_for_unix.py
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| 30 | # because it a shebang #!/usr/bin/env python2
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| 31 | # This test is still useful for the C++ oils-for-unix.
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| 32 |
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| 33 | case $SH in
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| 34 | */bin/osh)
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| 35 | echo yes
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| 36 | echo yes
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| 37 | exit
|
| 38 | ;;
|
| 39 | esac
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| 40 |
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| 41 | # Get absolute path before changing PATH
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| 42 | sh=$(which $SH)
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| 43 |
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| 44 | old_path=$PATH
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| 45 | unset PATH
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| 46 |
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| 47 | $sh -c 'echo $PATH' > path.txt
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| 48 |
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| 49 | PATH=$old_path
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| 50 |
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| 51 | # looks like PATH=/usr/bin:/bin for mksh, but more complicated for others
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| 52 | # cat path.txt
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| 53 |
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| 54 | # should contain /usr/bin
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| 55 | if egrep -q '(^|:)/usr/bin($|:)' path.txt; then
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| 56 | echo yes
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| 57 | fi
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| 58 |
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| 59 | # should contain /bin
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| 60 | if egrep -q '(^|:)/bin($|:)' path.txt ; then
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| 61 | echo yes
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| 62 | fi
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| 63 |
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| 64 | ## STDOUT:
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| 65 | yes
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| 66 | yes
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| 67 | ## END
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| 68 |
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| 69 |
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| 70 | #### $HOME is NOT set
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| 71 | case $SH in *zsh) echo 'zsh sets HOME'; exit ;; esac
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| 72 |
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| 73 | home=$(echo $HOME)
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| 74 | test "$home" = ""
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| 75 | echo status=$?
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| 76 |
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| 77 | env | grep HOME
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| 78 | echo status=$?
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| 79 |
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| 80 | # not in interactive shell either
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| 81 | $SH -i -c 'echo $HOME' | grep /
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| 82 | echo status=$?
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| 83 |
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| 84 | ## STDOUT:
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| 85 | status=0
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| 86 | status=1
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| 87 | status=1
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| 88 | ## END
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| 89 | ## BUG zsh STDOUT:
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| 90 | zsh sets HOME
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| 91 | ## END
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| 92 |
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| 93 |
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| 94 | #### $1 .. $9 are scoped, while $0 is not
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| 95 | fun() {
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| 96 | echo $0 | grep -o 'sh'
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| 97 | echo $1 $2
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| 98 | }
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| 99 | fun a b
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| 100 |
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| 101 | ## STDOUT:
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| 102 | sh
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| 103 | a b
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| 104 | ## END
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| 105 | ## BUG zsh STDOUT:
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| 106 | a b
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| 107 | ## END
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| 108 |
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| 109 | #### $?
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| 110 | echo $? # starts out as 0
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| 111 | sh -c 'exit 33'
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| 112 | echo $?
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| 113 | ## STDOUT:
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| 114 | 0
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| 115 | 33
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| 116 | ## END
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| 117 | ## status: 0
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| 118 |
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| 119 | #### $#
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| 120 | set -- 1 2 3 4
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| 121 | echo $#
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| 122 | ## stdout: 4
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| 123 | ## status: 0
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| 124 |
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| 125 | #### $$ looks like a PID
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| 126 | # Just test that it has decimal digits
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| 127 | echo $$ | egrep '[0-9]+'
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| 128 | ## status: 0
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| 129 |
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| 130 | #### $$ doesn't change with subshell or command sub
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| 131 | # Just test that it has decimal digits
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| 132 | set -o errexit
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| 133 | die() {
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| 134 | echo 1>&2 "$@"; exit 1
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| 135 | }
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| 136 | parent=$$
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| 137 | test -n "$parent" || die "empty PID in parent"
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| 138 | ( child=$$
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| 139 | test -n "$child" || die "empty PID in subshell"
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| 140 | test "$parent" = "$child" || die "should be equal: $parent != $child"
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| 141 | echo 'subshell OK'
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| 142 | )
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| 143 | echo $( child=$$
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| 144 | test -n "$child" || die "empty PID in command sub"
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| 145 | test "$parent" = "$child" || die "should be equal: $parent != $child"
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| 146 | echo 'command sub OK'
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| 147 | )
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| 148 | exit 3 # make sure we got here
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| 149 | ## status: 3
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| 150 | ## STDOUT:
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| 151 | subshell OK
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| 152 | command sub OK
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| 153 | ## END
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| 154 |
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| 155 | #### $BASHPID DOES change with subshell and command sub
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| 156 | set -o errexit
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| 157 | die() {
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| 158 | echo 1>&2 "$@"; exit 1
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| 159 | }
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| 160 | parent=$BASHPID
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| 161 | test -n "$parent" || die "empty BASHPID in parent"
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| 162 | ( child=$BASHPID
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| 163 | test -n "$child" || die "empty BASHPID in subshell"
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| 164 | test "$parent" != "$child" || die "should not be equal: $parent = $child"
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| 165 | echo 'subshell OK'
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| 166 | )
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| 167 | echo $( child=$BASHPID
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| 168 | test -n "$child" || die "empty BASHPID in command sub"
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| 169 | test "$parent" != "$child" ||
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| 170 | die "should not be equal: $parent = $child"
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| 171 | echo 'command sub OK'
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| 172 | )
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| 173 | exit 3 # make sure we got here
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| 174 |
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| 175 | # mksh also implements BASHPID!
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| 176 |
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| 177 | ## status: 3
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| 178 | ## STDOUT:
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| 179 | subshell OK
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| 180 | command sub OK
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| 181 | ## END
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| 182 | ## N-I dash/zsh status: 1
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| 183 | ## N-I dash/zsh stdout-json: ""
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| 184 |
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| 185 | #### Background PID $! looks like a PID
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| 186 | sleep 0.01 &
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| 187 | pid=$!
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| 188 | wait
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| 189 | echo $pid | egrep '[0-9]+' >/dev/null
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| 190 | echo status=$?
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| 191 | ## stdout: status=0
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| 192 |
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| 193 | #### $PPID
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| 194 | echo $PPID | egrep '[0-9]+'
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| 195 | ## status: 0
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| 196 |
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| 197 | # NOTE: There is also $BASHPID
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| 198 |
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| 199 | #### $PIPESTATUS
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| 200 | echo hi | sh -c 'cat; exit 33' | wc -l >/dev/null
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| 201 | argv.py "${PIPESTATUS[@]}"
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| 202 | ## status: 0
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| 203 | ## STDOUT:
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| 204 | ['0', '33', '0']
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| 205 | ## END
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| 206 | ## N-I dash stdout-json: ""
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| 207 | ## N-I dash status: 2
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| 208 | ## N-I zsh STDOUT:
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| 209 | ['']
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| 210 | ## END
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| 211 |
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| 212 | #### $RANDOM
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| 213 | expr $0 : '.*/osh$' && exit 99 # Disabled because of spec-runner.sh issue
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| 214 | echo $RANDOM | egrep '[0-9]+'
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| 215 | ## status: 0
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| 216 | ## N-I dash status: 1
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| 217 |
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| 218 | #### $UID and $EUID
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| 219 | # These are both bash-specific.
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| 220 | set -o errexit
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| 221 | echo $UID | egrep -o '[0-9]+' >/dev/null
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| 222 | echo $EUID | egrep -o '[0-9]+' >/dev/null
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| 223 | echo status=$?
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| 224 | ## stdout: status=0
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| 225 | ## N-I dash/mksh stdout-json: ""
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| 226 | ## N-I dash/mksh status: 1
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| 227 |
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| 228 | #### $OSTYPE is non-empty
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| 229 | test -n "$OSTYPE"
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| 230 | echo status=$?
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| 231 | ## STDOUT:
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| 232 | status=0
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| 233 | ## END
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| 234 | ## N-I dash/mksh STDOUT:
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| 235 | status=1
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| 236 | ## END
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| 237 |
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| 238 | #### $HOSTNAME
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| 239 | test "$HOSTNAME" = "$(hostname)"
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| 240 | echo status=$?
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| 241 | ## STDOUT:
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| 242 | status=0
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| 243 | ## END
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| 244 | ## N-I dash/mksh/zsh STDOUT:
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| 245 | status=1
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| 246 | ## END
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| 247 |
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| 248 | #### $LINENO is the current line, not line of function call
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| 249 | echo $LINENO # first line
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| 250 | g() {
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| 251 | argv.py $LINENO # line 3
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| 252 | }
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| 253 | f() {
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| 254 | argv.py $LINENO # line 6
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| 255 | g
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| 256 | argv.py $LINENO # line 8
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| 257 | }
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| 258 | f
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| 259 | ## STDOUT:
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| 260 | 1
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| 261 | ['6']
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| 262 | ['3']
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| 263 | ['8']
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| 264 | ## END
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| 265 | ## BUG zsh STDOUT:
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| 266 | 1
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| 267 | ['1']
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| 268 | ['1']
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| 269 | ['3']
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| 270 | ## END
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| 271 | ## BUG dash STDOUT:
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| 272 | 1
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| 273 | ['2']
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| 274 | ['2']
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| 275 | ['4']
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| 276 | ## END
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| 277 |
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| 278 | #### $LINENO in "bare" redirect arg (bug regression)
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| 279 | filename=$TMP/bare3
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| 280 | rm -f $filename
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| 281 | > $TMP/bare$LINENO
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| 282 | test -f $filename && echo written
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| 283 | echo $LINENO
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| 284 | ## STDOUT:
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| 285 | written
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| 286 | 5
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| 287 | ## END
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| 288 | ## BUG zsh STDOUT:
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| 289 | ## END
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| 290 |
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| 291 | #### $LINENO in redirect arg (bug regression)
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| 292 | filename=$TMP/lineno_regression3
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| 293 | rm -f $filename
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| 294 | echo x > $TMP/lineno_regression$LINENO
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| 295 | test -f $filename && echo written
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| 296 | echo $LINENO
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| 297 | ## STDOUT:
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| 298 | written
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| 299 | 5
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| 300 | ## END
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| 301 |
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| 302 | #### $LINENO in [[
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| 303 | echo one
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| 304 | [[ $LINENO -eq 2 ]] && echo OK
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| 305 | ## STDOUT:
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| 306 | one
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| 307 | OK
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| 308 | ## END
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| 309 | ## N-I dash status: 127
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| 310 | ## N-I dash stdout: one
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| 311 | ## N-I mksh status: 1
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| 312 | ## N-I mksh stdout: one
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| 313 |
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| 314 | #### $LINENO in ((
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| 315 | echo one
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| 316 | (( x = LINENO ))
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| 317 | echo $x
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| 318 | ## STDOUT:
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| 319 | one
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| 320 | 2
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| 321 | ## END
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| 322 | ## N-I dash stdout-json: "one\n\n"
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| 323 |
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| 324 | #### $LINENO in for loop
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| 325 | # hm bash doesn't take into account the word break. That's OK; we won't either.
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| 326 | echo one
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| 327 | for x in \
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| 328 | $LINENO zzz; do
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| 329 | echo $x
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| 330 | done
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| 331 | ## STDOUT:
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| 332 | one
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| 333 | 2
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| 334 | zzz
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| 335 | ## END
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| 336 | ## OK mksh STDOUT:
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| 337 | one
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| 338 | 1
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| 339 | zzz
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| 340 | ## END
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| 341 |
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| 342 | #### $LINENO in other for loops
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| 343 | set -- a b c
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| 344 | for x; do
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| 345 | echo $LINENO $x
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| 346 | done
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| 347 | ## STDOUT:
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| 348 | 3 a
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| 349 | 3 b
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| 350 | 3 c
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| 351 | ## END
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| 352 |
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| 353 | #### $LINENO in for (( loop
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| 354 | # This is a real edge case that I'm not sure we care about. We would have to
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| 355 | # change the span ID inside the loop to make it really correct.
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| 356 | echo one
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| 357 | for (( i = 0; i < $LINENO; i++ )); do
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| 358 | echo $i
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| 359 | done
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| 360 | ## STDOUT:
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| 361 | one
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| 362 | 0
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| 363 | 1
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| 364 | ## END
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| 365 | ## N-I dash stdout: one
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| 366 | ## N-I dash status: 2
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| 367 | ## BUG mksh stdout: one
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| 368 | ## BUG mksh status: 1
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| 369 |
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| 370 | #### $LINENO for assignment
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| 371 | a1=$LINENO a2=$LINENO
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| 372 | b1=$LINENO b2=$LINENO
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| 373 | echo $a1 $a2
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| 374 | echo $b1 $b2
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| 375 | ## STDOUT:
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| 376 | 1 1
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| 377 | 2 2
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| 378 | ## END
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| 379 |
|
| 380 | #### $LINENO in case
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| 381 | case $LINENO in
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| 382 | 1) echo 'got line 1' ;;
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| 383 | *) echo line=$LINENO
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| 384 | esac
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| 385 | ## STDOUT:
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| 386 | got line 1
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| 387 | ## END
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| 388 | ## BUG mksh STDOUT:
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| 389 | line=3
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| 390 | ## END
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| 391 |
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| 392 | #### $_ with simple command and evaluation
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| 393 |
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| 394 | name=world
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| 395 | echo "hi $name"
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| 396 | echo "$_"
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| 397 | ## STDOUT:
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| 398 | hi world
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| 399 | hi world
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| 400 | ## END
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| 401 | ## N-I dash/mksh STDOUT:
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| 402 | hi world
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| 403 |
|
| 404 | ## END
|
| 405 |
|
| 406 | #### $_ and ${_}
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| 407 | case $SH in (dash|mksh) exit ;; esac
|
| 408 |
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| 409 | _var=value
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| 410 |
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| 411 | : 42
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| 412 | echo $_ $_var ${_}var
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| 413 |
|
| 414 | : 'foo'"bar"
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| 415 | echo $_
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| 416 |
|
| 417 | ## STDOUT:
|
| 418 | 42 value 42var
|
| 419 | foobar
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| 420 | ## END
|
| 421 | ## N-I dash/mksh stdout-json: ""
|
| 422 |
|
| 423 | #### $_ with word splitting
|
| 424 | case $SH in (dash|mksh) exit ;; esac
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| 425 |
|
| 426 | setopt shwordsplit # for ZSH
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| 427 |
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| 428 | x='with spaces'
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| 429 | : $x
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| 430 | echo $_
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| 431 |
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| 432 | ## STDOUT:
|
| 433 | spaces
|
| 434 | ## END
|
| 435 | ## N-I dash/mksh stdout-json: ""
|
| 436 |
|
| 437 | #### $_ with pipeline and subshell
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| 438 | case $SH in (dash|mksh) exit ;; esac
|
| 439 |
|
| 440 | shopt -s lastpipe
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| 441 |
|
| 442 | seq 3 | echo last=$_
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| 443 |
|
| 444 | echo pipeline=$_
|
| 445 |
|
| 446 | ( echo subshell=$_ )
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| 447 | echo done=$_
|
| 448 |
|
| 449 | ## STDOUT:
|
| 450 | last=
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| 451 | pipeline=last=
|
| 452 | subshell=pipeline=last=
|
| 453 | done=pipeline=last=
|
| 454 | ## END
|
| 455 |
|
| 456 | # very weird semantics for zsh!
|
| 457 | ## OK zsh STDOUT:
|
| 458 | last=3
|
| 459 | pipeline=last=3
|
| 460 | subshell=
|
| 461 | done=
|
| 462 | ## END
|
| 463 |
|
| 464 | ## N-I dash/mksh stdout-json: ""
|
| 465 |
|
| 466 |
|
| 467 | #### $_ with && and ||
|
| 468 | case $SH in (dash|mksh) exit ;; esac
|
| 469 |
|
| 470 | echo hi && echo last=$_
|
| 471 | echo and=$_
|
| 472 |
|
| 473 | echo hi || echo last=$_
|
| 474 | echo or=$_
|
| 475 |
|
| 476 | ## STDOUT:
|
| 477 | hi
|
| 478 | last=hi
|
| 479 | and=last=hi
|
| 480 | hi
|
| 481 | or=hi
|
| 482 | ## END
|
| 483 |
|
| 484 | ## N-I dash/mksh stdout-json: ""
|
| 485 |
|
| 486 | #### $_ is not reset with (( and [[
|
| 487 |
|
| 488 | # bash is inconsistent because it does it for pipelines and assignments, but
|
| 489 | # not (( and [[
|
| 490 |
|
| 491 | case $SH in (dash|mksh) exit ;; esac
|
| 492 |
|
| 493 | echo simple
|
| 494 | (( a = 2 + 3 ))
|
| 495 | echo "(( $_"
|
| 496 |
|
| 497 | [[ a == *.py ]]
|
| 498 | echo "[[ $_"
|
| 499 |
|
| 500 | ## STDOUT:
|
| 501 | simple
|
| 502 | (( simple
|
| 503 | [[ (( simple
|
| 504 | ## END
|
| 505 |
|
| 506 | ## N-I dash/mksh stdout-json: ""
|
| 507 |
|
| 508 |
|
| 509 | #### $_ with assignments, arrays, etc.
|
| 510 | case $SH in (dash|mksh) exit ;; esac
|
| 511 |
|
| 512 | : foo
|
| 513 | echo "colon [$_]"
|
| 514 |
|
| 515 | s=bar
|
| 516 | echo "bare assign [$_]"
|
| 517 |
|
| 518 | # zsh uses declare; bash uses s=bar
|
| 519 | declare s=bar
|
| 520 | echo "declare [$_]"
|
| 521 |
|
| 522 | # zsh remains s:declare, bash resets it
|
| 523 | a=(1 2)
|
| 524 | echo "array [$_]"
|
| 525 |
|
| 526 | # zsh sets it to declare, bash uses the LHS a
|
| 527 | declare a=(1 2)
|
| 528 | echo "declare array [$_]"
|
| 529 |
|
| 530 | declare -g d=(1 2)
|
| 531 | echo "declare flag [$_]"
|
| 532 |
|
| 533 | ## STDOUT:
|
| 534 | colon [foo]
|
| 535 | bare assign []
|
| 536 | declare [s=bar]
|
| 537 | array []
|
| 538 | declare array [a]
|
| 539 | declare flag [d]
|
| 540 | ## END
|
| 541 |
|
| 542 | ## OK zsh STDOUT:
|
| 543 | colon [foo]
|
| 544 | bare assign []
|
| 545 | declare [declare]
|
| 546 | array [declare [declare]]
|
| 547 | declare array [declare]
|
| 548 | declare flag [-g]
|
| 549 | ## END
|
| 550 |
|
| 551 | ## OK osh STDOUT:
|
| 552 | colon [foo]
|
| 553 | bare assign [colon [foo]]
|
| 554 | declare [bare assign [colon [foo]]]
|
| 555 | array [declare [bare assign [colon [foo]]]]
|
| 556 | declare array [array [declare [bare assign [colon [foo]]]]]
|
| 557 | declare flag [declare array [array [declare [bare assign [colon [foo]]]]]]
|
| 558 | ## END
|
| 559 |
|
| 560 | ## N-I dash/mksh stdout-json: ""
|
| 561 |
|
| 562 | #### $_ with loop
|
| 563 |
|
| 564 | case $SH in (dash|mksh) exit ;; esac
|
| 565 |
|
| 566 | # zsh resets it when in a loop
|
| 567 |
|
| 568 | echo init
|
| 569 | echo begin=$_
|
| 570 | for x in 1 2 3; do
|
| 571 | echo prev=$_
|
| 572 | done
|
| 573 |
|
| 574 | ## STDOUT:
|
| 575 | init
|
| 576 | begin=init
|
| 577 | prev=begin=init
|
| 578 | prev=prev=begin=init
|
| 579 | prev=prev=prev=begin=init
|
| 580 | ## END
|
| 581 |
|
| 582 | ## OK zsh STDOUT:
|
| 583 | init
|
| 584 | begin=init
|
| 585 | prev=
|
| 586 | prev=prev=
|
| 587 | prev=prev=prev=
|
| 588 | ## END
|
| 589 | ## N-I dash/mksh stdout-json: ""
|
| 590 |
|
| 591 |
|
| 592 | #### $_ is not undefined on first use
|
| 593 | set -e
|
| 594 |
|
| 595 | x=$($SH -u -c 'echo prev=$_')
|
| 596 | echo status=$?
|
| 597 |
|
| 598 | # bash and mksh set $_ to $0 at first; zsh is empty
|
| 599 | #echo "$x"
|
| 600 |
|
| 601 | ## STDOUT:
|
| 602 | status=0
|
| 603 | ## END
|
| 604 |
|
| 605 | ## N-I dash status: 2
|
| 606 | ## N-I dash stdout-json: ""
|
| 607 |
|
| 608 | #### BASH_VERSION / OILS_VERSION
|
| 609 | case $SH in
|
| 610 | bash*)
|
| 611 | # BASH_VERSION=zz
|
| 612 |
|
| 613 | echo $BASH_VERSION | egrep -o '4\.4\.0' > /dev/null
|
| 614 | echo matched=$?
|
| 615 | ;;
|
| 616 | *osh)
|
| 617 | # note: version string is mutable like in bash. I guess that's useful for
|
| 618 | # testing? We might want a strict mode to eliminate that?
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| 619 |
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| 620 | echo $OILS_VERSION | egrep -o '[0-9]+\.[0-9]+\.' > /dev/null
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| 621 | echo matched=$?
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| 622 | ;;
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| 623 | *)
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| 624 | echo 'no version'
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| 625 | ;;
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| 626 | esac
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| 627 | ## STDOUT:
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| 628 | matched=0
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| 629 | ## END
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| 630 | ## N-I dash/mksh/zsh STDOUT:
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| 631 | no version
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| 632 | ## END
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| 633 |
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| 634 | #### $SECONDS
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| 635 |
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| 636 | # should be zero seconds
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| 637 | echo seconds=$SECONDS
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| 638 |
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| 639 | ## status: 0
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| 640 | ## STDOUT:
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| 641 | seconds=0
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| 642 | ## END
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| 643 | ## N-I dash STDOUT:
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| 644 | seconds=
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| 645 | ## END
|